ASTROSAT CZTI

Data Quality Report

Orbit 47992

Creation date: 2024-08-13T15:59:43.325405
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_062T02_9000006384_47992cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47992cztM0_level2_quad_clean.evt
Size (bytes)765,604,800174,576,960
Size730.1 MB 166.5 MB
Events in quadrant A10,923,6711,197,814
Events in quadrant B4,979,3031,188,756
Events in quadrant C4,861,8151,142,870
Events in quadrant D6,801,4381,062,879

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02060
B02060
C02060
D02060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400862
B0217552
C0215172
D0272022

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A100045155.147941%
B100042432.429028%
C100041181.179528%
D100045235.227909%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 11319 10006 153 153 1.35% 1.53%
B 11319 10006 34 34 0.30% 0.34%
C 11319 10006 12 12 0.11% 0.12%
D 11319 10006 427 427 3.77% 4.27%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 5899099 24308.3 1170 1147 242.6
A 14 248 474526 1951.02 1170 1147 242.6
A 13 254 14162 53.64 1170 1147 242.6
B 5 255 172771 748.98 1158 1123 229.2
B 7 221 155237 672.47 1158 1123 229.2
B 12 111 29167 122.37 1158 1123 229.2
C 15 208 177334 647.98 1146 1151 271.9
C 14 254 122138 444.98 1146 1151 271.9
C 14 67 52816 190.02 1146 1151 271.9
D 2 37 1199154 4135.26 1148 1111 289.7
D 2 249 777732 2680.65 1148 1111 289.7
D 11 224 105273 359.53 1148 1111 289.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter